Magazine for box looms



Mrch 22,1927.

J. TARANTO MAGAZINE FOR Box LOOMS Filed March 17. 1925 (I -llrl IIJJLKJHT... Erin-v 2 NVENTOR 2% TM ATTORNEY Patented Mar. 22, 1927.

stares J OHN ITA AN F- WA T M MA$ U E T MAGAZINE ron BOX LooMs.

Application filed; March- ;17, 1925,15 rSerial No. 16,116;

Thisinventio reltjttestnboalooms.

A loom; of this ;type 1 includes, a magazinehaving grooves to receiveone or more vertical-series ofibobbins. \Vheni the supply of threa d. on1 the-bobbin in I the running: shuttle becomes depleted, an automatic.meohanlsni releases; the lowermost. bobbin; in one; :of the a series-.and a transfer. mechanism operates to rcei. itqinto theshuttle' 1 1placing-thesebobbins in the magazine ashort lengt ofl thread or yarn isunwound from each bobbin and its end'tis attached to a holder with whichthe magazine is equipped, so that when a bobbin finally is forced intothe shuttle the fact that the end of the thread which it carries isfastened will cause the thread to unwind as the shuttle is shot throughthe shed.

In operating looms of this type it is found that very frequently thethreads or ends become broken while the bobbins are still in themagazine, or else are broken during the transfer of the bobbins into therunning shuttle. When this occurs the shuttle simply travels idlythrough the shed without laying a thread in it, and the bobbin isejected from the shuttle automatically by mechanism controlled by thefeeler motion. It is the chief object of the present invention to devicemeans for preventing, or at least substantially reducing, breakages ofthe character just described.

The nature of the invention will be readily understood from thefollowing description when read in connection with the accompanyingdrawings, and the novel features will be particularly pointed out in theappended claims.

In the drawings,

Figure 1 is a perspective View of a magazine of a box loom showing itequipped with apparatus embodying this invention; and

Fig. 2 is an elevation showing a detail of construction.

The drawings show the magazine of the well known Crompton & Knowlesloom. This magazine comprises two plates 2 and 3 supported in verticalpositions and spaced apart by substantially the length of the bobbin B.The plate 2 is provided with several vertical grooves 4 to receive thebutts or bases of the bobbins, while the plate 3 has similar grooves toreceive the tips of the bobbins. The magazine shown is designed tosupport four series of bobbins, the several series differing from eachother in color.

Short lengths of thread T i f ttFQw unwound? from the b obbius-:wl 1en.-they are placed-tin the magaz ine,-. ledthrough the-slots in the plate3, andsfastened aroundgathe: pins. @1511 skewers .5.

I have-.cliscoveredtha-t tl' eireason, for mostof the breakage of thethreads T while -.the,, bobbins arew a h -magaz e! ion-damn the transferof a bobbin-into a shuttle, isthatthe vibration of theloomimparts.toithje bobbins a gradiml; rotary motion in the vmagazine and this notation usually is in such-a dined tion as to wind the threads T on theirrespective bobbins. This winding motion proceeds until the threadbreaks, if it is of relatively fine gage, or until it is so taut that itsnaps when the transfer hammer strikes the bobbin and forces it into theshuttle.

In order to prevent an occurrence of this character I have secured abracket 6 to the plate 2 by means of a bolt 7. The upper end of thisbracket is turned over horizontally, as shown at 8, and four rods 9, onefor each of the grooves 4, areguided in holes formed in the part 8.These rods may consist simply of heavy wire. The lower end of eachrod'is coiled, as shown at 10, to form a head which bears on the base orbutt of the uppermost bobbin in its respective groove. These rods andheads thus constitute plungers. Preferably each head 10 has an extension11 projecting therefrom, as clearly shown in Fig. 2, to engage the sideof the bobbin base or the edge of the magazine and prevent the plungerfrom rotating. In order to press the head of each plunger against thebase of the bobbin on whichit bears, each rod is encircled by a coiledspring 12 which bears at its lower end against the head 10 and at itsupper end against the plate 8. The upper ends of the rods preferably arebent at right angles to form handles 14.

In operation, the springs 1:2 hold the heads 10 of the plungers againstthe uppermost bobbins in the respective grooves, thus exerting apressure on all the bobbins in each series. This pressure is sufiicientto prevent any rotative movement of the bobbins due to the vibration ofthe machine. Conse quently, any tightening of the threads T from thecause above descr-ibedis effectually prevented. In loading bobbins intothe magazine it is simply necessary to lift each plunger by raising thehandle 14, the bobbins then being placed in the grooves in the usualmanner. In fact, the plungers may be raised and set on the upper edge ofthe plate 2 While the bobbins are being placed in the magazine, and theplungers may subsequently be returned to their operative positions, asshown.

Itwill be evident that the invention provides an apparatus which can bemanufactured very economically, can be quickly attached to machines inoperation, and requires practically no care or attention.

lVhile I have herein shown and described the best embodiment of myinvention that I have so far devised, I do not desire to be limited tothe exact details of the construction shown.

Having thus described my invention, what I desire to claim as new is:

1. In a box loom, a magazine having a groove to receive the bases of aseries of bobbins arranged one above the other, a rod havinga headarranged to bear on the base of the uppermost bobbin in the groove, abracket having a part above the magazine in which the rod is guided, anda coiled spring encircling said rod between said bracket and head andserving to press the rod down wardly.

'2. In a box loom, a magazine having a groove to receive the bases of aseries of bobbins arranged one above the other, a plunger having a headarranged to bear on the base of the uppermost bobbin in the groove andprovidedwith an extension serving to prevent the rotation of saidplunger, means for guiding said plunger for vertical movement in saidgroove, and a coiled spring for urging said plunger downwardly to causeit to press together the entire series of bobbin bases in the groove.

JOHN TARANTO.

